Gattendorf is a town in the district of Neusiedl am See, in the Austrian state of Burgenland. It lies in the easternmost part of Austria, within a district whose administrative centre is the town of Neusiedl am See.
Burgenland is Austria's easternmost state, bordering Hungary to the east and, in this district, also Slovakia to the northeast. The Neusiedl am See district surrounds the northern part of Lake Neusiedl, a steppe lake whose surrounding area forms a recognised cultural landscape. Gattendorf sits within this broader region of the Pannonian Basin, an area known for its flat terrain and continental climate.
Beyond its status as a town within the Neusiedl am See district, few details about Gattendorf are documented in the available source material. It is one of several municipalities that make up the district, which lies along Austria's eastern border with Hungary.